Chemical Bonding and Molecular Structure

In an experiment, $m$ grams of a compound X (gas/liquid/solid) taken in a container is loaded in a balance as shown in figure I below. In the presence of a magnetic field, the pan with X is either deflected upwards (figure II), or deflected downwards (figure III), depending on the compound X. Identify the correct statement(s).

The figure below is the plot of potential energy versus internuclear distance $(d)$ of $\ce{H2}$ molecule in the electronic ground state. What is the value of the net potential energy $E_0$ (as indicated in the figure) in $\mathrm{kJ\,mol^{-1}}$, for $d = d_0$ at which the electron-electron repulsion and the nucleus-nucleus repulsion energies are absent? As reference, the potential energy of H atom is taken as zero when its electron and the nucleus are infinitely far apart.

Use Avogadro constant as $6.023\times10^{23}\ \mathrm{mol^{-1}}$.

A tin chloride Q undergoes the following reactions (not balanced)

$\mathbf Q + \ce{Cl-} \to \mathbf X$

$\mathbf Q + \ce{Me3N} \to \mathbf Y$

$\mathbf Q + \ce{CuCl2} \to \mathbf Z + \ce{CuCl}$

X is a monoanion having pyramidal geometry. Both Y and Z are neutral compounds. Choose the correct option(s)

Each of the following options contains a set of four molecules. Identify the option(s) where all four molecules possess permanent dipole moment at room temperature.

Among $\ce{B2H6}$, $\ce{B3N3H6}$, $\ce{N2O}$, $\ce{N2O4}$, $\ce{H2S2O3}$ and $\ce{H2S2O8}$, the total number of molecules containing covalent bond between two atoms of the same kind is ______

At 143 K, the reaction of $\ce{XeF4}$ with $\ce{O2F2}$ produces a xenon compound Y. The total number of lone pair(s) of electrons present on the whole molecule of Y is ______

Consider the following reactions (unbalanced)

$\ce{Zn}$ + hot conc. $\ce{H2SO4} \to$ G + R + X

$\ce{Zn}$ + conc. $\ce{NaOH} \to$ T + Q

G + $\ce{H2S}$ + $\ce{NH4OH} \to$ Z (a precipitate) + X + Y

Choose the correct option(s)

Based on the compounds of group 15 elements, the correct statement(s) is (are)

Among the species given below, the total number of diamagnetic species is ______.

H atom, $\ce{NO2}$ monomer, $\ce{O2-}$ (superoxide), dimeric sulphur in vapour phase, $\ce{Mn3O4}$, $\ce{(NH4)2[FeCl4]}$, $\ce{(NH4)2[NiCl4]}$, $\ce{K2MnO4}$, $\ce{K2CrO4}$

The total number of compounds having at least one bridging oxo group among the molecules given below is ____.

$\mathrm{N_2O_3}$, $\mathrm{N_2O_5}$, $\mathrm{P_4O_6}$, $\mathrm{P_4O_7}$, $\mathrm{H_4P_2O_5}$, $\mathrm{H_5P_3O_{10}}$, $\mathrm{H_2S_2O_3}$, $\mathrm{H_2S_2O_5}$

Match each set of hybrid orbitals from LIST-I with complex(es) given in LIST-II.

The correct option is

The correct statement(s) about the oxoacids, $\ce{HClO4}$ and $\ce{HClO}$, is(are)

The colour of the $\ce{X2}$ molecules of group 17 elements changes gradually from yellow to violet down the group. This is due to

The sum of the number of lone pairs of electrons on each central atom in the following species is

$\ce{[TeBr6]^{2-}}$, $\ce{[BrF2]+}$, $\ce{SNF3}$, and $\ce{[XeF3]-}$

(Atomic numbers: N = 7, F = 9, S = 16, Br = 35, Te = 52, Xe = 54)

Among $\ce{H2}$, $\ce{He2+}$, $\ce{Li2}$, $\ce{Be2}$, $\ce{B2}$, $\ce{C2}$, $\ce{N2}$, $\ce{O2-}$, and $\ce{F2}$, the number of diamagnetic species is

(Atomic numbers: H = 1, He = 2, Li = 3, Be = 4, B = 5, C = 6, N = 7, O = 8, F = 9)

Among the following, the correct statement(s) is(are)

Which of the following species is not paramagnetic ?

Which of the following molecules is least resonance stabilized ?

Which of the following is paramagnetic ?

$sp^3d^2$ hybridization is not displayed by :